java runtime_error ai_generated true

java.lang.NegativeArraySizeException: -1

ID: java/negative-array-size-exception

Also available as: JSON · Markdown · 中文
90%Fix Rate
82%Confidence
1Evidence
2023-08-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
Java 8 active — — —
Java 11 active — — —
Java 17 active — — —
Java 21 active — — —

Root Cause

An attempt to create an array with a negative size, typically caused by an integer overflow, a bug in size calculation, or malformed input data.

generic

中文

尝试创建大小为负数的数组，通常由整数溢出、大小计算错误或格式错误的输入数据引起。

Official Documentation

https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/NegativeArraySizeException.html

Workarounds

  1. 95% success Validate the array size before creation: if (size < 0) throw new IllegalArgumentException("Size must be non-negative: " + size); 
    Validate the array size before creation: if (size < 0) throw new IllegalArgumentException("Size must be non-negative: " + size);
  2. 70% success Use Math.max(0, size) to clamp the size to a non-negative value as a temporary fix, but investigate the root cause. 
    Use Math.max(0, size) to clamp the size to a non-negative value as a temporary fix, but investigate the root cause.

中文步骤

  1. Validate the array size before creation: if (size < 0) throw new IllegalArgumentException("Size must be non-negative: " + size);
  2. Use Math.max(0, size) to clamp the size to a non-negative value as a temporary fix, but investigate the root cause.

Dead Ends

Common approaches that don't work:

  1. 90% fail

    The issue is not about memory limits but a negative value; increasing heap does not fix the logic error.

  2. 80% fail

    This masks the underlying bug, potentially leading to data corruption or silent failures.